Pipe-forming machine.



PIPE FORMING MACHINE. .ArrLIuuxon mum mm: 14. 1909;

Patented July 16, 1912.

6 SHEETS-SHEET 1.

0. H.'TAESGH-NER-& m3. wmTH;

" PIPE FORMING MACHINE.

APPLICATION FILED JUNE 14,1909; I

1,032,634; Patented July 16, 1912..

W a fl,

' I 727% r I '61 u f 0. H. TABSGHNER 61 R. E. WIRTH.

PIP-E FORMING MACHINE. I APPLICATION FILED JUNE 14, 1909. 1,032,634.Patented July 16, 1912.

6 SHEETS-SHEET 6.

. wfm,

properly bent into final form.

the line 4- 1: of Fig. 2.

warren .OTTO TAESQ'HNER E'UDGLZ'FEI ill. W'IR'I'H, 0F GZ-IICAGO,ILLINOIS.

risen-romaine MABHINE.

0. all whom it may concern."

it known that we, U'rro H. Tnnscrmnn and llrooLerrj E. lViRTH, citizensof the Unitedfitates, and residents of Chicago, in the county of Cool:and State of Illinois, have invented certain new and usefullintprovements in Pipe-Forming Machines; and we do hereby declare thatthe following is a full, clear, and exact description thereof,reference'being had to the accompanying drawings, and to the letters ofreference inarkedthereon, which form a part of this speciti' cation.

. This invention relates to an improvement in machines for (if llingpipes formed of sheet metal. p

In the operation of the machine a sheet of metal, of a width to form thecircumference of the pipe. is passed through successive sets of rollerswhich are arranged transverse outer edges, to then extend this curvaturefarther toward the medial line of the sheetofmetahand to continue thisprocess of bending the-sheet transverse of its lengthto approximate thecompleted section or the 'pipenntil, with the operation of the last setof. rollers, it is delivered from the machine sea of the formation ofthe pipe by thus bending the pipe forming sheet, transverse of itslength, there are preferably formed at the opposite longitudinal edgesof the sheet, oppositely disposed images which are broughttogether alongthe medial line of the upper surface of the pipe whezi it is.

bentto final form. Just befo're the pipe is delivered from the machine aU-shaped .strip is fed into position to embrace these flanges with itslegs, and the machine is pro-' vided with tucking mechanisinwhich tackthese legs under thefianges ofthe pipeso as i to lock the edges of thepipe in position.

Our invention. relates to the combination ot parts hereinafter describedand more particularly pointed out in the claims;

In the drawings :-Fignre 1 is a side elevation-of our improved machine.Fig. is a top planview oi the. same. Fig. 3 is vertical section throughFig. 2, on the line.

thereof. Fig. 4: is a similar section on Fig. 5 13 a similar section'on'the line 5-5ot Fig. 2. Fig. ti

In the proc- Patented July is, 1912.

Application filed t'nne is, isae. $373521 in. 592,6?8.

section on the line 6-6. of Fig. 2. L an l 8 are like sections of Fig. 2on the lines, respectively, 77 and 8 8. Fig.

s side elevation of the pressing and tucking rolls on an enlarged scale.Fig. 10 is a top plan View of the same. Fig. 11 is a .tical sectionthrough Fig. 9 on the line ill-Ll thereof.

1.5 represents the base of the machine upon which the {operating partsare mounted. These operating parts, aswill presently appear, compriseseries of'sets of rollers arranged in progression along the bed of the.machine and properly geared. to act together. hese rollers receive theflat piece or" nieta'lat one end of" the machine .as it is fedin a.longitudinal direction to them, and then by their successive operationson the: said sheet as different sections'thereof are presented to them,finally roll the sheet into pipe form and deliver it at the rear end ofthe machine in its final form.

.16, 17 represent the first pair of rollers which are of male and femaleformation and are best seen in Fig. 3. Said rollers are arranged on theframe 'of the machine with their axes transverse thereof, and have theirperipheries so formed with respect. to each other, that in theiroperation on the flat sheet of nietahits outer edges will be curved upfrom the horizontal and at the same time turned backward so as to givesaid sheet the form in transverse section, indicated at 18, in whichsection 19 represents the curled up longitudinal-edges of the sheet, and20indicatesthe flanges formed atthe outer-edges of said curved sections.The section of the rollers 16,17 in a plane through their axes is suchthat the curved portions 19 of the sheet are formed on -a radius whichis'equal i the radius of the pipe when finally finished, so that so muchofthe cnrva-ture'of the pipe is completed in the operation of this firstset of rollers. Fromthis set of 'r'ollersthe pipe-tormingsheet passes tothe.

which are best seen in Fig. 4. Said rollers are also male and teinaleandare arrangedwith their'axes transverse to the direction in which thepipe-forming sheet is beingfed as before, and their peripheries areof-such shape in crossseetion that the sheet, when rolled between them,will be "bent. up into substantially the shapei-ndicated at 28. It willhe noted that the sidesof the pipe-for'mnext set of rollers 21, 22,. thesections of mg sheet, in which the flanges 20 and the l the Ushapedpiece embracing the 'llane'cs finally formed curved portions 19 aremade. project lb'e 'ond the limits of the engaging surfaces of theserollers. and these rollers put curvature. approaching the finalcurvature of the pipe. into that. section of the pipe-forming sheetlying between said curred portions 19. From said rollers thepipeforlning sheet passes between the male and female rollers 24:.25which are arranged next in order on the frame of the machine 'ith theiraxes trai'iswerse to said frame. The engaging surfaces otthese rollersare formed with a. section transverse to the direction of the feed ofthepipe torining sheet having a curvature with a radius still moreapproaching; the radius of the finished pipe.

It is to he noted that the upper roller 24 is made shorter than thelower roller 25 in order to allow room for the curved portions 19. 19-Which curl up about its ends. This pair of rollers carries the processas far as it may he carried by means 0t two male and. female rollers, asit is apparent from a consideration of Fig. 5, that any further head Iing of the pipe-forming sheet would leave no room for the operation ofan upper roller. For this reason the next stage of the process iscarried on by the use of a-set of three rollers which act on the outsideof the pipe forming sheet alone. This next set of rollers is best to beseen in Fig. 6, in. which '26 represents the rollers and 27 the frame inwhich they are carried. Said rollers are arranged with their axes atangles of 60 to each other in a vertical plane at right angles to thebed of t e machine. Each of the lower ends of the upper rollerseontactwith the ends of the lower roller at one point on their edges. so thatthe three together. by their peripheries, form a circle closed at everypoint except at thet-op. as the upper ends of the top rollers do notquite touch. as is to be seen at 28. When the pipe-forming sheet ispassed between t. s set of three rollers the pipe-forming sheet isapproximated to the final term of the pipe and is ready, for delivery tothe next. set. which is another set of three rollers similar to the setshown in Fig. 6. with the exception that the upper edges of the ends ofthe upper rollers are brought. still more closely-together so astmfinally bring: the flanged edges of the pipe-torming sheet together,as indicated in Fig. 7, wherein 29 represents the rollers and 30 thesupporting frame.

A U-shaped strip of metal 31 is so ted to the machine by any convenientmechanism or by hand if desired. that when the pipeforming sheet reachesthis last set three rollers 29,- the legs of the strip will stra theflanges of the pipe-forming sheet. a in Mont-ml at 31. The pipe-formingsin-act with plctcd pi pe.

cl? the machine and to the pressing and tucklhese are They thereon thenpasses 111g rollers now to he described. bestto be seen in Furs. 9. l0and 11.

comprise a pressing roller 32 which is adapt top of the strip 3t andhold it the flanges at the edge of the pipe-forming sheet. and twotucking rollersBB arranged at each side of. and a little to the rearwardof. said pressing roller which engage the outer faces of the ot theU-shaped strip 31 and tuck them under the flanges on the pine. The axesof the tucking rollers or disks 33 are arranged in a vertical plane atright angles to the longttudinal axis of: the nnu-hine. and said planeis slightly in the rear of the horizontal axis of the pressing roller3:2 so that said pressing roller can act. to depress the U-shaped stripdown on the flanges before the pipe is delirered to the action of thetucking rollers or disks 33. A groove 32 is formed in the periphery ofthe roller to receive and guide the. U-shaped strip 31.

32 indicates the. liorizonta'lly arranged shaft for the roller 39. and32-3" the vertically arranged shafts for the tut-kins! rollers or dishs83'. Said shaft-s are suilahl uaamled ed to hear on down in contact within a standard 3 3 which is secured to the rear of the vertical standard-30.

From the tucking and pressing rollers the now iinis u rollers 15o. aswhich are best to he seen in Fig. 8. These rollers are a rraneedone alumthe other with their axes tr-ansxerse t the frame 0* the iriavhinc andin liorixonlal planes.

'lheir peripheries are a complete circle of the diameter ll thez-oinlihe upper roller 33 is pro titled with a small groove 35" whichgive monitor the passage of the hinding strip which engz'lp cs theflanges of the pipe. 'lhcse rollers are delivery rollers and they serveto draw the pipe from the machine and deliver it therefrom.

Passing; now to a more detailed descriptionoi the construction of themachine. the rollers 16 and 17 are mounted. respectively. on shafts 40.4-1 which are journaled in' lilocas all). 41 1. headed in standards 42which are secured to the lied oi the machine.

43. 44: represent inlet-meshing gears secured to the ends.'1,'LS])tl"ll.' l oi the shafts 40. all. The roll Ql. are similarlymounted on shafts l journalml in hloelc L5. &6 which are located instaiulards -l-T. the shafts being geared iogel'lnrlJ) incansot gearwheels 48. 49. The rolleus let. are likewise mounted on shafts 50. 51journalcd. respectively, in blocks 02 .313. which are mounted instandards secured to the hed geared together by means of gears 54 p r56, 57 represent idle gear'sinterposed. re-

d pipe is delirei'ml to a set ct two tornurd with V l grooves so thatthe two rollers turret her nialm I to rotate in unison, and the various1,'ose,ees

spectively, hetween the gears 55 an'd lQ and be e n: t s ts 4: 6441-gears aredrivenfroin the-shaft 46 to Which lteyedthe large gear 'asmallAll of these spro liet Wheels 65, 66 and at the other end the spr'oclheel 67. A large sprocliet'wheel 68 is keyed to tlie end of the shaft 51of the'roller 2:5. The sprocket 68 is geared to the sprocket .63 bymeans of a sprocket chain 69 and the sprocket 64. is-geared to thesprocket 66 tial as the several rollers may bed of the by t-he. )rocketchain 70. The sprocket is'geared by a chain. to a sprocket 81, securedto the'end or" the sh'aftSQ of the pressing roller 32. The rollers35, 36are journaled-ly means of'the' lively. inlclocks 35", 36 which aremounted in standards 73 secured to the bed of the machine. The shaft Y2is provided with c sprocket 74 which is geared hymeans of the sprocketchain '35 to the sprocketwheel 67. The two shafts 71, 72 are gearedtogether by means ofthe sprocket wheels 7 6, 77 and the crossedsproclzet chain 7 8. It will be seen from this description that all ofthe rollers are geared together so as gears. and sprocket Wheels, aresovrelated, as to their respective sizes, that the surface speed of allthe rollers is the samethroughont the machine. It is apparent beactingupon difierent lengths of'the same pipe and in the case of pipes whichare as long as the machine, necessarily must act on different sectionsof the g' iipe, at one and the same time. so that the speed of therollers must be timed to draw each section of the pipe along at the samerate.

The various parts of the machine are cured together in. an convenient orusual manner, and it is not thought that a further description in thisrespect is'necessary, they are clearly illustrated in the dravings andare apparent to any mechanic.

The machine is quitesiinple in livperation and. it will be apparent thatthe pipe is formed frame flat pipe-forming sheet of the desired Widthwhich, 18 fed to the inachine at one end as such. and which is deliveredfrom the n'iacliine at the other end in the form of the completed pipe.The :t'ormiq tion oil: the pipe stroni the pipetorining.

n.- s l sheet'ie a. gradual one, the nmchme that this is essensheet,comprising shafts 71, 72, respeci roller sense approximating: the actionof the human-hands if they-were used to form a roll of pipe from a flatsheet of malleable material.

lllhile we have'illustrated in the drawings certain mechahical detailsof construction and have shown. therein one einhodiment of ourinvention, 'We do not Wish to be limited to the particularconstructionillustrated as it is apparent that it ina'y=he.modilied Withoutdeparting from the spirit of our invention.

\Ve claim as our invention v 1. A machine for rolling pipe from a fiatpiece o'f metal and for locking in place a U-shaped strip of metal whicheral flanges formed on the pipe-forming a series of sets of rollersadapted to receive and successively act upon the pipe-forming sheet,said rollers being formed to bend the pipe-forming sheet transversely ofits-length and'being adapted to curve said-sheet in progressive degreesas the pipe-forming sheet. is successively acted. upon by them until thepipe is completely formed with the action of the v rollers, the firstset of rollers being adapted to form lateral; oppositely disposedflanges on the pipeforming sheetg and' tucking mechanism adaptedto applythe U.- shaped stripto the flanges formed on said pipetormingsheet,located in the rear of the last set of pipeforming roller said tuckingmechanism comprising a in place, and tucking rollers arrangedateach sideof said pressing roller adapted to tuck the legs of said U-shap'ed stripunder the said flanges.

2. A machine for rolling pipe from a Hat piece of metal. and -forlocking in place a U- shaped strip of metal which engages lateralflanges formed on the pipe-forming sheet. comprising a series of sets ofrollcrs adaptedto receive and successively act upon the pipeformingsheet. said rollers being formed to bend the pipe-forming sheettransversely of its length and being adapted to curve said sheet inprogressive degree as the pipe-forming sheet is successively acted uponby them until the pipe is completely formed with the action of the lastset of rollcrs the first-set of rollers being adapted toform lateral.oppositely disposed flanges on the pipe-forming sheet. and-tuckingmechanism adapted to apply the U- shaped strip to the flanges formed onsaid pipe-forming sheet. located in the rear of the last set ofpipe-forming rollers. said tucking mechanism comprising a. pressingroller adapted to press tln. U-shaped strip in place.

and tucking rollers arranged at each side of engages latpressing adaptedto press-the UFshaped strip last set of 3. A machine for rolling; pipefrom a flat sheet of metal. comprising a series of sets of rolleradapted to receive and auccessivel v act upon the pipetorming sheet tobend the same transversely of its length. the Several sets being adaptedto curve aid sheet in progremive degrees as the pipeforming' sllttt' issuecessively acted upon by them. the first set of rollers comprisingmale and female rollers adapted to form lateral flangea on thepipe-forming .--lieet and to curve said sheet adjacent said flanges. thesucceeding set of rollers being also oi male and female formation to actOlldltllll sides of the pipe-forming sheet and to curve the sameintermediate the lateral curve tot-med lrv the first set of roller. athird set of male and female rollers adapted to act on both sides ofsaid pipe-twining! sheet and still further curve the same. a fourth setof roll ers comprieing a plurality of rollers with their axes in a planeat right angles to the direction of the feed of the pipe-forming sheet.said rollers engaging the outside of the pipeferming sheet only. andanother set of similarly arranged and dispoeed rollers adapted to actonthe outeide of the pipe? forming sheet only and finally bring theflanges formed on said pipe-forming sheet together and produce the fital curvature of the pipe. together with a set of delivery roll- 6 '5adapted to engage the outside of the tinished pipe and'draw it from themachine.

4a A machine for rolling pipe from a tlat sheet of metal.comprising aseries of sets.

of rollers adapted to receive and successively act uponthe-pipe-fiirlning sheet to head the same transversely of its length,the several sets being adapted to curve said sheet in progressivedegrees as the p'i-peforiiiing' sheet is successively acted upon bythem, the first set of rollers comprising male and female rollersadapted to form lateral tlanges'on the pipedorming sheet and to curveand liccl adjacent said thingies. the succeeding wt oi" rollers being:also of male and female formation to act on both side's of thepipe-forming sheet and to curve the same intermediate the late .11curves formed h v the first set of rollers. a third set of male andfemale rollers adapted to act on both sides of said pipetorming' sheetand still further curve the same. a fourth set of rollers comprising aplurality of rollers with their axes in a plane at right angles to thedirection of the feed ot the pipe torining sheet. said rollers engap'ingthe outside of the pipe-forming sheet only. another set of similarlyarranged and dispcsed rollers adapted to act on the outside of thepipe-forming sheet only and finally bring the flanges formed on saidpipe-forming sh'eet together and produce the tinal curvature of thepipe. and t-ncltil'ig' mechanism arranged to act after said above namedlaet mentioned set of rollers. the same comprising; a messing rollerwith ita axia at right angles to the axis of the machine, and itsperiphery tangential to the path of the flanges anthe pipe-formingsheet. and tucking rollers arranged at each pressing roller and slightlyin the rear thereof with their axes at right angles to the bed of themachine, the peripheries of said tucking rollers being beveled at theiredges.

In testimony that we claim the foreg ing as our invention we athx oursignatures in the presence of two witnesses, this 5th day of June A. D.1909.

out) r1. 'riinsonxnn. RUDOLPH E. \VIRTH.

Witnesses CLAaIzXcn E. MnnLnorn, Gnonen R. ll ninixs.

side of said

